SETI: July 2011

* 58% of American Adults think it's at least somewhat likely life exists on other planets; 34% do not believe it's likely
* That number includes 33% who say it's Very Likely life exists outside of Earth and 8% who believe it's Not At All Likely
* 49% say it's likely that a human will walk on Mars in the next 25 years, down slightly from December 2006
* 42% think it's unlikely a human will make it to Mars, that includes 20% who say it's Very Likely and 8% who believe it's Not At All Likely